@Override
public void run(Timeout timeout) throws Exception {
if (timeout.isCancelled()) {
return;
}
if (!ctx.getChannel().isOpen()) {
return;
}
State state = (State) ctx.getAttachment();
long currentTime = System.currentTimeMillis();
long nextDelay = timeoutMillis - (currentTime - state.lastReadTime);
if (nextDelay <= 0) {
// Read timed out - set a new timeout and notify the callback.
state.timeout = timer.newTimeout(this, timeoutMillis, TimeUnit.MILLISECONDS);
try {
// FIXME This should be called from an I/O thread.
// To be fixed in Netty 4.
readTimedOut(ctx);
} catch (Throwable t) {
fireExceptionCaught(ctx, t);
}
} else {
// Read occurred before the timeout - set a new timeout with shorter delay.
state.timeout = timer.newTimeout(this, nextDelay, TimeUnit.MILLISECONDS);
}
}
private void destroy(ChannelHandlerContext ctx) {
State state = (State) ctx.getAttachment();
if (state.timeout != null) {
state.timeout.cancel();
state.timeout = null;
}
}
private void initialize(ChannelHandlerContext ctx) {
State state = new State();
ctx.setAttachment(state);
if (timeoutMillis > 0) {
state.timeout =
timer.newTimeout(new ReadTimeoutTask(ctx), timeoutMillis, TimeUnit.MILLISECONDS);
}
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
State state = (State) ctx.getAttachment();
state.lastReadTime = System.currentTimeMillis();
ctx.sendUpstream(e);
}